Some doubtful questions in LabVIEW Fundamentals Exam

[Pattos]

Hi pradnaveen,

I would say that question 5 is answer c, because the minimum resolution of a 12 bit board in a 10V Range is 0,00244 V which means, that a 0,0026 V change will be detected.

[naveenbitsys]

Thank u for ur answer

[naveenbitsys]

Can someone tell rest of the answers of question

[naveenbitsys]

1 Which VI architecture allows the user to run several tasks concurrently?

A   Multiple Case Structure VI
B   Parallel Loop VI
C   State Machine VI
D   None of the above

 2.Under which of the following settings would you not apply a gain to your signal?

A   5 V signal with 0-10 V ADC range
B   10 V signal, with 0-10 V ADC range
C   10 V signal with 0-5 V ADC range
D   1 V signal with 0-10 V ADC range

3.In LabVIEW, you may print to all of the following, EXCEPT:

A   Printer
B   HTML
C   Plain Text
D   All of the above are possible printing options

4.DAQmx channels and virtual channels are a collection of property settings that include all of the following, EXCEPT:

A   scaling information.
B   physical channel.
C   type of measurement.
D   base I/O address.

5.How does changing a DAQ board from a 0-10 volt range to a -10 to 10 volt range, affect the minimum voltage change that can be detected?

A   There will be no effect on the minimum voltage change that can be detected.
B   The minimum voltage change that can be detected will be split in half.
C   The minimum voltage change that can be detected will depend inversely with the resolution of the board.
D   The minimum voltage change that can be detected will be doubled.


6.What feature does LabVIEW include in order to allow a fast programming start from a common VI architecture?

A   VI Patterns
B   VI Templates
C   VI Starters
D   VI Guides

for

1.c

2.a

3.a

4.a

5.c

6.b

Am i correct friends pls clear me

if i am wrong explain plzzzzzzzzzzz

[vt92]

5.How does changing a DAQ board from a 0-10 volt range to a -10 to 10 volt range, affect the minimum voltage change that can be detected?

A   There will be no effect on the minimum voltage change that can be detected.
B   The minimum voltage change that can be detected will be split in half.
C   The minimum voltage change that can be detected will depend inversely with the resolution of the board.
D   The minimum voltage change that can be detected will be doubled.

If both boards have the same resolution, then D is correct.  If both boards were 12 bit, then the 0-10 board would have a 0.00244 resolution, the -10 to +10 would have a 0.00488 resolution. 

Othewise, I would say that C is correct in general. 

[Dennis_Knutson]

Your answers to 1,2,3, and 4 are wrong.

What about a state machine runs in parallel?

You would apply a gain of 2 to the 5 volt signal

Yes, you may print to the printer.

Scaling information is included with a task/channel

[RavensFan]

See below

Your Answer

Correct Answer

 I'd suggest a lot more practicing and using LabVIEW before taking any CLAD exams.

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pradnaveen wrote:

ok tell me if i am correct pls  apply

1.Which VI architecture allows the user to run several tasks concurrently?

A   Multiple Case Structure VI
B   Parallel Loop VI
C   State Machine VI
D   None of the above

State Machines give a way to control sequencing.  Parallel Loops allow things to run in parallel. 

2.All of the following statements regarding SubVIs are true, EXCEPT:

A   They require less memory.
B   They allow for easier debugging.
C   They allow you to use the same code for many future applications.
D   All of the above statements are true. Correct.  Note.  SubVI's can use a little bit more memory, but they also allow you to replace duplicated code thus greatly reducing the memory requirements.
 
3.Under which of the following settings would you not apply a gain to your signal?

A   5 V signal with 0-10 V ADC range  Gain of 2
B   10 V signal, with 0-10 V ADC range
C   10 V signal with 0-5 V ADC range Gain of 1/2
D   1 V signal with 0-10 V ADC range Gain of 10

4.In LabVIEW, you may print to all of the following, EXCEPT:

A   Printer
B   HTML
C   Plain Text Of course you can print to a printer.  Since LV is graphical, plain text might be a problem.
D   All of the above are possible printing options

5.Which DAQ board will allow for the detection of a 2.6 mV change in a signal if a 0-10 volt range was selected?

A   12-bit board This might be the correct answer, it is close to the 2.44 mV change as shown in the explanation for D.  But it would be a little generous round off error.
B   16-bit board
C   Both A. and B.
D   None of the above 10V / 2^12 is .00244 V or 2.44 mV.  10V/2^16 is 0.153 mV

6.DAQmx channels and virtual channels are a collection of property settings that include all of the following, EXCEPT:

A   scaling information.
B   physical channel.
C   type of measurement.
D   base I/O address. Correct.

7.How does changing a DAQ board from a 0-10 volt range to a -10 to 10 volt range, affect the minimum voltage change that can be detected?

A   There will be no effect on the minimum voltage change that can be detected.
B   The minimum voltage change that can be detected will be split in half.
C   The minimum voltage change that can be detected will depend inversely with the resolution of the board. Question isn't talking about resolution, but the range of the board.
D   The minimum voltage change that can be detected will be doubled.

FOR

1.c

2.d

3.a

4.a

5.b

6.d

7.c

Tell me if i am correct or not and if wrong tell me the reason please

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Message Edited by Ravens Fan on 01-05-2010 10:35 AM

[MaxCrunch]

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Ravens Fan wrote:

5.Which DAQ board will allow for the detection of a 2.6 mV change in a signal if a 0-10 volt range was selected?

A   12-bit board This might be the correct answer, it is close to the 2.44 mV change as shown in the explanation for D.  But it would be a little generous round off error.
B   16-bit board
C   Both A. and B.
D   None of the above 10V / 2^12 is .00244 V or 2.44 mV.  10V/2^16 is 0.153 mV

Message Edited by Ravens Fan on 01-05-2010 10:35 AM

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The question says "will allow for the detection of a 2.6 mV change"  - both a 12bit board and a 16bit one will "allow for" detection of a 2.6mV change, although neither have that exact resolution, making the correct answer C  (I think!)

[AnalogKid2DigitalMan]

Printing to a plain text file is possible, at least with LabVIEW 8.2. Granted, not much is conatined in the file, basically the vi path, last modified date/tiem, and current revision number.

-AK2DM

[RavensFan]

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MaxCrunch wrote:

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Ravens Fan wrote:

5.Which DAQ board will allow for the detection of a 2.6 mV change in a signal if a 0-10 volt range was selected?

A   12-bit board This might be the correct answer, it is close to the 2.44 mV change as shown in the explanation for D.  But it would be a little generous round off error.
B   16-bit board
C   Both A. and B.
D   None of the above 10V / 2^12 is .00244 V or 2.44 mV.  10V/2^16 is 0.153 mV

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The question says "will allow for the detection of a 2.6 mV change"  - both a 12bit board and a 16bit one will "allow for" detection of a 2.6mV change, although neither have that exact resolution, making the correct answer C  (I think!)

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Yes.  I think you're right.  I reinterpreted the question in my mind to something different than what is asking.